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2071172207 = 13367434117
BaseRepresentation
bin111101101110011…
…1001010001101111
312100100021110010202
41323130321101233
513220210002312
6541304224115
7102216446636
oct17334712157
95310243122
102071172207
11973139375
1249976b03b
132701365b0
1415910451d
15c1c709c2
hex7b73946f

2071172207 has 8 divisors (see below), whose sum is σ = 2236575936. Its totient is φ = 1906637472.

The previous prime is 2071172189. The next prime is 2071172219. The reversal of 2071172207 is 7022711702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2071172207 - 220 = 2070123631 is a prime.

It is a super-2 number, since 2×20711722072 = 8579508622098501698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2071172207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071172267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212288 + ... + 221829.

It is an arithmetic number, because the mean of its divisors is an integer number (279571992).

Almost surely, 22071172207 is an apocalyptic number.

2071172207 is a deficient number, since it is larger than the sum of its proper divisors (165403729).

2071172207 is a wasteful number, since it uses less digits than its factorization.

2071172207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434497.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 2071172207 is about 45510.1330145277. The cubic root of 2071172207 is about 1274.6924198719.

Adding to 2071172207 its reverse (7022711702), we get a palindrome (9093883909).

The spelling of 2071172207 in words is "two billion, seventy-one million, one hundred seventy-two thousand, two hundred seven".

Divisors: 1 13 367 4771 434117 5643521 159320939 2071172207